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On the relationships between SDN and Autonomic Management & Control
© ETSI 2013. All rights reserved
AFI Presentation at ETSI Workshop
B. Radier, Orange (on behalf of ETSI ISG AFI)9th April 2013, ETSI, Sophia Antipolis
AFI work in progress: Relationships between SDN and Autonomic Management & Control
This presentation is based on the ongoing discussions on
“Relationships between SDN and Autonomic Management & “Relationships between SDN and Autonomic Management &
Control” in ETSI/ISG/AFI
This is a work in progress subject to further review and
discussions.
Outlook
Software Defined Network (SDN) outline
Definition
Framework
Standardisation status
Autonomic outlineAutonomic outline
Definition
Framework
Standardisation status
Relationships between SDN and Autonomic Management &
Control
Differences & complementarities
relationships3
Software-Defined Networking definition
� No consensus on SDN framework or definition
SDN aims at providing flexible programmable control network
ITU-T as an illustration defines Software Defined Networking (SDN) as a ITU-T as an illustration defines Software Defined Networking (SDN) as a
networking technology which allows centralized, programmable control
planes, data plane abstraction and separation of control and data (a.k.a
forwarding) planes so that network operators can control and manage
directly their own (possible virtualized) resources.
SDN ITU-T SG13 as an illustration
Framework
ProgrammableControl Plane
Network OS
ProgrammableControl Plane
Network OS
Northbound Interface East-west Interface
SDN Services,Apps
App APIs
SDN Language NetConf/others(I2RS openconfig…)
to be assess
Data Plane(Forwarding Hardware)
Control and Data Planes Separation
Network OS
Data Plane(Forwarding Hardware)
Data Plane(Forwarding Hardware)
Data Plane(Forwarding Hardware)
Network OS
Southbound Interface Carriers’ Infrastructure
Information openflow(ONF)/others
SDN standardization status
SDN is considered in various standardisation organisation (ONF/ITU-
T/IETF/IRTF/ETSI)
ITU-T sg13 Q21 draft Recommendation Y.FNsdn, 2013
IETF Forces RFC 3746, 2004IETF Forces RFC 3746, 2004
I2RS july 2013
ONF White paper “Software-Defined Networking: The New Norm for
Networks “ 2012
Standardization (ETSI/ISG/AFI)
Autonomic aims at providing flexible management & control
network
Autonomics = Control Loops (interworking Hierarchical Fast Control-Loops in
devices/nodes and Slow control-loops in outer Management & Knowledge Planes )
Autonomic Management & Control = Autonomics in the Management Plane &
Autonomic network AFI Definition
Autonomic Management & Control = Autonomics in the Management Plane &
Autonomics in the Control Plane (whether distributed or centralized)
AFI defines autonomic networking as an Autonomic system with
Cognitive capabilities; systems, which determine their behaviour, in a
reactive or proactive manner, based on the external stimuli
(environment aspects), as well as their goals, principles, capabilities,
experience and knowledge.
Knowledge
AFI Autonomic Reference Model
Levels of Hierarchical Control-Loops (from within a Network-Element up to the “Network-
Level/Knowledge Plane“) demonstrate how Autonomics can be introduced.
AFI Autonomic Reference Model mapped to
Network Management architecture
Kn
ow
led
ge
pla
ne
CognitionModule
CognitionModule
CognitionModule
Operator's Domain
Business RulesBusiness & Policy / Requirement & goals
Service ProfileService policy & requirement
Operator's OSSNetwork policy enforcment/rules/policy/OAM
DE
DE
DE
Operator's Domain
Business RulesBusiness & Policy / Requirement & goals
Service ProfileService policy & requirement
Operator's OSS DE
DE
DE
Operator's Domain
Business RulesBusiness & Policy / Requirement & goals
Service ProfileService policy & requirement
DE
DE
Cognition
Module
CognitionModule
Cognition
CognitionModule
CognitionModule
Cognition
Kn
ow
led
ge
pla
ne
Module
CognitionModule
Network policy enforcment/rules/policy/OAM
Configuration, billing, provisionning
Vendor's domain
Network AwareAutonomic
Network Aware
Vendor’s Management system
EMS EMSNE
NE
NEDE
DEDE
DE DE
DE
Operator's OSSNetwork policy enforcment/rules/policy/OAM
Configuration, billing, provisionning
DEOperator's DomainOperator's OSS
Network policy enforcment/rules/policy/OAM
Configuration, billing, provisionning
DE
Vendor's domain
Network AwareAutonomic
Network Aware
Vendor’s Management system
EMS EMSNE
NE
NEDE
DEDE
DE DE
DE
Vendor's domain
Aware
Autonomic Network
Aware
Vendor’s Management system
EMS
ME
MEDE
DE
FN
CN
DE
DE
CognitionModule
CognitionModule
CognitionModule
CognitionModule
DE
ME
AFI main Requirements / Enablers
AFI designed an end to end management framework and its
instantiation in different network architectures (Mesh/ad hoc/IMS/NGN/…)
AFI main Enablers for graceful introduction of manageable Autonomics:
Manage the behaviour of (legacy/future) infrastructure
Trust autonomic in operational (legacy/future) management
Modularity/Composability, Cooperation, Orchestration of (conflicting)
decision elements (DEs) decision elements (DEs)
Knowledge Plane, context aware, cognitive mechanisms , system modelling,
service models, service discovery
Network Governance mechanisms / policy-based management continuum
Virtualisation, Mobility management
Programmability
Bootstrapping mechanism,
Self healing, fault detection, diagnosis, repair and recovery
(Cross-layer) Monitoring Mechanisms
Differences & complementarities
Autonomic Management & Control
loop (ETSI/ISG/AFI)
SDN
Programmable, manageable and cost-
effective network
Programmable, manageable and cost-
effective network
Distributed/Hybrid/Centralised Centralised (logically)
Manage the behaviour of legacy / future Control the (virtualised) networkManage the behaviour of legacy / future
infrastructure
Control the (virtualised) network
Orchestration/cooperation/coordination
decision elements
Orchestration/cooperation/coordination
services
Governance (end to end policy continuum
(business managed entities)
Control policy continuum
Cross domain management Cross domain control
Cognitive capabilities (knowledge plane)
Programmable management Plane &
control loop
Programmable control plane
Network’s domain
Network Managementsystem
Service Profile
Business rules
Application providers
Co
ntr
ol p
lan
e Controller
Policy DB
DE DE DE
DE DE
SDN AFI Reference Modelknow
ledge p
lane
self managed by
Legacy Operator's OSS
Service and quality objective goal
Ma
na
ge
me
nt
pla
ne
1 23
Buisness and policy goals
DE
DE DE
8
6
DE
DE
Vendor’s domain
App:
Firewall
App:
routingApp:
Load Bal
Network Operating System & Orchestrator
Open Interface (ONF (OpenFlow)
others)
API IETF (SDN &
NETCONF)
Packet
Forwarding
Packet
Forwarding
Da
ta p
lan
e
Co
ntr
ol p
lan
e
Network & Data Centres providers
Policy DB
know
ledge p
lane
Packet
Forwarding
Packet
Forwarding
Managed
Entity
Managed
Entity
Managed
Entity
Managed
Entity
5
7
4App:
Firewall
App:
routingApp:
Load Bal
95’
DE data plane management and
forwarding management
DE
GANA level DE Specific SDN
functionality
Network &
Knowledge
Plane
Node
Function
Standardisation: To establish liaisons between
AFI & SDOs working in SDN area
Guideline for mapping AFI Reqts & Reference Model to potential SDN SDOs Reqts & Reference Models
SDN Input
High Level Requirements
Technical Requirements (Framework,
AFI
Requirements
Use case
Scenarios
Repository
AFI WI 1
AFI
AFI WI 2
Function
Protocol
Reference point Characteristic Information
SDN Autonomic-Aware
AFI
Enablers
Technical Requirements (Framework,
Reference Architectures, …)AFI
DEs
Repository
AFI WI 2
Thank You ..!Thank You ..!
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